The Pilgrim's Progress, by John Bunyan. I have never read the book exactly, but ever since I was a child I have listened to a dramatized version of this on tape. As a child the bible was too deep for me to grasp very many concepts, but this, this I was able to understand and glean so much from. I think this book, helped me understand a great deal about redemption, the reason for pain, the list goes on. I will never stop loving this book, as well as the sequel.
Dangerous Journey (A Pilgrim's Progress) btw, a couple of the images are intense for young children, for example Apollyon starting at 47:30, or in the Valley of the Shadow of Death at 1:00, the giants of Doubting Castle at about 1:25